Fallout 4 Vault 75

Fallout 4 Vault 75

Vault 75 is a Vault-Tec Vault located in the Commonwealth.

Located underneath the Malden Middle School, this Vault was presented to the public as a safe place for children in the school to take cover in the event of a nuclear war.

In fact when the war began in 2077, the children with their designated families and teachers entered in time. However, while all of the children were escorted to the atrium, the adults were separated and killed by Vault security. The purpose of this Vault was to enhance the gene pool of its selected residences to create stronger and more intelligent subjects. The surviving children were tested mentally and physically as part of the experiment. If they were intelligent and physically well built, they were either "harvested" for their good genes when they turned 18 or those with good intelligence and obedience were recruited to the vaults science team after graduation. The others were disposed of. The others who were deemed insufficient to the vault's standards were killed upon reaching the age of 18 prior to graduation. However, details found in the various terminals suggest that even those who were "graduated" were killed after harvesting. The mission of Vault 75, above all, was the refinement of human genetics.

At some point the Vault was opened and emptied. Some internal log entries suggest there was a rebellion amongst the junior test subjects, aided by a "graduate" scientist. Whatever the case, in 2287 there are no residents remaining, and the Vault is serving as a hidden Gunners stronghold.

The entrance is a standard vault entrance. An elevator will take the player character down into the actual vault. Entering the elevator will activate the quest Vault 75. The Atrium consists of two floors; on the upper floor the player character will find a classroom, two dormitories and the entrance to the overseers office. On the lower floor of the atrium the player character will find the kitchen and canteen area. To the south there is a cave with the vault's power generators. Going through the corridors to the west from the atrium you will find a cave with a diner; this is a combat simulation area. You can activate the simulation using the terminal.

Science bobblehead, located in the laboratory.
Grognak the Barbarian in the room just off of the overseer's room (Expert pick or use the Overseer's terminal to unlock)
Overseer's Safe Key in the room just off of the overseer's room (Expert pick or use the Overseer's terminal to unlock)
Fusion core in a suitcase shortly after entering. May be Random.
Vault-Tec lunchbox on the lower level. Immediately after exiting the elevator, look left at the intersection behind the blue container. There is a skeleton wearing glasses and holding it.

Related quests
Vault 75

Vault 75 is very similar to Vault 87 in which both vaults were designed to alter the genetics of their subjects to create stronger and more intelligent super humans.

In the western residential room on the mezzanine floor, there are four wooden blocks arranged in the name "Gary", a reference to Gary clones from Vault 108 in Fallout 3. Another set is located beneath the walkway into the vault behind some crates.